dkc5127a0600p_01 - 1/5
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1. INTRODUCTION
The NIPRESS DK
−
500, DK
−
600, and DK
−
700 pressure switches with flush sensor are a successful combination of an
intelligent pressure switch and a 4-digit LED display. This makes it suitable for numerous applications in various industrial
sectors for monitoring and controlling the pressure via switching outputs. It comes with a rotatable display and with PNP contact
outputs. Ex version is also available.
DK-500 series is an electronic pressure switch with Stainless Steel sensor. Excellent for applications in the area of plant and
machine engineering, heating and air conditioning, and environmental engineering (water – sewage – recycling).
DK-600 series is an electronic pressure switch with ceramic sensor. It is suitable for the usage in viscous, pasty or highly
contaminated media. The robust rotatable Stainless-Steel housing is designed for using under rough conditions and in hard
operating environment.
DK-700 series is an electronic pressure switch with welded Stainless-Steel sensor. This pressure switch has been developed
for process industry, especially for food industry and pharmacy.
2. TECHNICAL DATA
G
ENERAL DATA
Type
DK
-5
-
DK
-6
2-
DK
-7
-
/DL
-7
-
Measuring range
−
1…0; 0…600 bar
(
−
14.5…0; 0…8700 psig) Per order code
−
1…0; 0…40 bar
(
−
14.5…0; 0…580 psig) Per order code
Overload tolerance
Per order code
Accuracy
p
≥
0.4 bar (5.8 psig): 0.25%;
0.5%
0.5%
p
≥
0,4 bar (5.8 psig):
0.25%; 0.5%
Medium temperature
−
40°C…+125°C (
−
40°F…+257°F)
−
40°C…+125°C (
−
40°F…+257°F) silicone oil
−
10°C…+125°C (+14°F…+257°F) food grade oil
Ambient temperature
−
40°C…+85°C (
−
40°F…+185°F)
Mat
erials of
the
wet
ted part
s
Sensor
Stainless steel 1.4435 (316L)
CeramicAl
2
O
3
96%
Stainless Steel 1.4435 (316L)
Seal
FKM; option: welded version
without seal (max. 40 bar
[580 psig])
FKM
(option: EPDM, max. 160
bar [2320 psig]), NBR
FKM < 200°C (392 °F),
FFKM > 200°C (392 °F)
Process
connection
Stainless steel 1.4404 (316L)
Stainless steel 1.4404 (316L)
(option: PVDF only with ½"
BSP, max. 60 bar [870 psig])
Stainless steel 1.4435 (316 L)
(max. 60 bar [870 psig])
Housing
Stainless steel 1.4404 (316L) Stainless steel 1.4301 (304)
Stainless steel 1.4404 (316L);
Output
1 or 2 independent PNP contacts, (optional analog output: 4...20 mA / 0–10 V)
Switching output
Short-circuit resistant PNP output (max.: 125 mA), delay time
adjustable between 0...100 s
Power supply (U
Supply
)
(1)
Without analog output: 13–36 V DC;
2-wire current output: 13–36 V DC
3-wire current output: 24 V DC ±10%;
3-wire voltage output: 24 V DC ±10%
Load resistance of
analog output
2- wire current output: R
max
=[(U
Supply
-U
Supply min.
)/ 0.02 A], [
Ω
]
3- wire current output: R
max
= 500
Ω
;
3- wire voltage output: R
min
= 10 k
Ω
Display
4-digit (7 mm [0.28 inch]), red LED display;
Range of indication:
−
1999…+9999;
Accuracy: 0.1% ±1 digit; Damping: 0.3–30 sec (adjustable)
Process connection
Per order code
Electrical connection
M12x1 (5-pin, metal)
Ingress protection
IP67
Electrical protection
Class III (SELV)
Weight
~0.4 kg (~0.88 lb)
~0.5 kg (~1.1 lb)
(1)
For information of Ex certified devices, see Special data for Ex certified models chart.
2.1
A
CCESSORIES
User’s and programming manual
Warranty card
EU declaration of conformity
S
PECIAL DATA FOR
E
X CERTIFIED MODELS
(
ONLY FOR
4…20
mA
/
2-
WIRE
)
Type
DK
-5
-
DK
-6
2-
DK
-7
-
/ DL
-7
-
Ex marking
(Pending)
Ex power supply
15–28 V DC
Intrinsically safety data
Use only with Ex ia certified power supply module!
U
imax
= 28 V DC, I
imax
= 93 mA, P
imax
= 660 mW, C
i
≈
0 nF, L
i
≈
0 mH
Max. switching current
(2)
70 mA
Permissible temperatures for environment
−
25°C…+70°C (
−
13°F…+158°F)
(2)
The real switching current depends on the power supply unit
2.2
ORDER
CODES
2.1 DK-500 ORDER CODE (N
OT ALL COMBINATIONS POSSIBLE
!)
NIPRESS D K –
5
–
*
M
EASURING
METHOD
C
ODE
P
ROCESS CONNECTION
C
ODE
R
ANGE
(1)
/
O
VERPRESSURE
[bar]
C
ODE
A
CCURACY
C
ODE
O
UTPUT
/
C
ERTIFICATES
C
ODE
Switch
K
¼” BSP
A
-1 – 0 / 5
0
0.25 %
(2)
1
1 PNP switching output
7
½”
BSP
C
0 – 0.1 / 0.5
1
0.5 %
2
2
PNP
switching output
9
¼”
NPT
G
0 – 0.16 / 1
R
4…20 mA 2-wire + 1 PNP
switching output / Ex ia G
(3)
F
½”
NPT
H
0 – 0.25 / 1
2
0
– 0.4 / 2
3
0
– 0.6 / 5
4
0 – 1 / 5
5
0 – 1.6 / 10
6
0 – 2.5 / 10
7
0 – 4 / 20
8
0
– 6 / 40
9
0
– 10 / 40
A
0
– 16 / 80
B
0
– 25 / 80
C
0
– 40 / 105
D
0
– 60 / 210
E
0
– 100 / 210
F
* Ex versions are marked "Ex" right after the type designation on the label
0
– 160 / 600
G
(1)
Custom measuring range available; subject to prior negotiation.
0
– 250 / 1000
H
(2)
p
≥
0,4
0
– 400 / 1000
J
(3)
Ex versions are available on special request. .
0
– 600 / 1000
K